In the final stages of a moon landing, a lunar module descends under retro-thrust of its descent engine to a height h = 3.7 m above the lunar surface where it has a downward velocity of 4m/s. Calculate the impact velocity with the moon’s surface if the engine is cut off at this point and lunar gravity is 1/6 of the earth’s gravity.
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Expert's answer
2019-08-14T09:43:56-0400
Formulae adopted is
"V_{f}^2=V_{i}^2+2\\times g\\times d"
Where g is acceleration due to gravity on moon which is 1/6 times of the earth, thus
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